US286689A - Press - Google Patents

Description

('NoModeL). 3 `S11@ets-Sheet 1.Y

' T. B. DOL-EY.

PRINTING' PRESS.

No.Y 286,689. Patented Oct. 1.6, 1883.

1 Inl/enton- N. PETERS, PhumLnnugnphef. washing n. t:A

(No Model.) s sheets-sheen T. B. DOOLBY.

PRINTING PRESS.

No. 286.689.. Patented Oct. 16, 1883..

N. PETERS. Pumuxmgnnber. washing. u. c.

T. B. DOOLBY. ,PRINTING PRESS.

3 Sheets-Sheet 3.

(No Model.)

No. 286,689. Pate'ntedct, 16, 1883. y

UNITED 'STATES 1 PATENT met.

THOMAS B. DOOLEY, O F BOSTON, MASSACHUSETTS, ASSGSOR TOv JOHN SOUTHER-,OF SAME PLAGE.

PINTIN cir-PRESS.

Patent No. 286,689, dated october 1e, ieee.

Application filed November 23, 1882. (Xo model.)

To @ZZ whom t may concern,.-

Beitknown that I, THonAs BROWN DooLEv,

a citizen of the United States, and a resident of Boston, in the county of Suffolk and State of Massachusetts, have invented a ner and Improved PrintingPress, of which the following is a specification. Y

The nature of the invention is that of a coin-l bnation of devices in a printing-press in the shape oi' a rotating typebearing cylinder accompanied by a series of rollers to inl; the types on said cylinder, and machinery to place the rollers in and out of contact with it to admit of cleaning the cylinder, &c., all in coinbination with a paper-sheet-bearing rotating cylinder and a device to effect permission of its rotation, and at the saine time prevent the indiscriminate inhing oi the paper sheet; also, of a device to be used, in ease of accident, to prevent an impression being taken, and a device for keeping the paper sheets duly spread, the Whole furnished with the usual 'feeding'table for the imprinted sheets and the usual ily for taking the printed sheets away, to which are `added a Water receptacle and some attachments and facilities for certain changes, here@ inafter explained, `to permit of a process of printing analogous to lithographing. The object of the Whole is the furnishing of a compact, rapid-Working, eicient, and low-pricedy combination of devices to print with eleetroplates or stereo-plates, or, at pleasure, in the bearing or form cylinder. larged view, in vertical. section, of the impresother manner referred to above.

Figure 1 is a side view of the press. Fig. 2 is an edgewise view from the left-hand side of Fig. 1.: Fig. 3 yis a sectional view of the type- Fig. et is an ensioneylinder. Figs. 5, 6, 7, and 8 are details hereinafter explained. Y

In the drawings, A Ax, Fig. 1, is called hereinafter the franie,7J but is but part of it,

being one of a pair of cast-iron frames, bearing the machinery between them.

B, Fig. l, is a shaft actuated by a pulley and belt, (not representeth) whose rotation actuates the `wholemachine. This shaft B bears a pinion-gear, C, Fig. 1, (seen in dashed lines,) which gears with D, Fig. l, ay large cog-wheel borne by the main shaft E, Fig. l, which is supported in appropriate bearings `(not represented) carried by the frame AA AX. This main shaft E carries the type-bearing or form cylinder F, Fig. l, borne by nine radiating arms. (Seen in Figs. l and 3.) The space appropriated to the form is seen at G, Fig. 3.

The form-cylinder F bears. at the points between H and HX, Fig. 3, a covering of a sheet of zinc, secured by screws thereon. Three. of these screws are seen in Fig. 3, being part of a set extending the length of the sheet paral iel with the shaft E. Another sheet of zinc similarly arranged and secured is seenbet-ween the points J and JX, Fig. 8. The zinc-covered portion of the face of the cylinder comes into contact -With `a series of composition ink-rollers, hereinafter mentioned, and act to distribute theink evenly upon them, and are called the ink-distributing surfacesH of the form cylinder. The object of the use of these zinc sheets is to cover the cast-iron cylinder at these points, to prevent the contact of the ink with the iron, and thus to prevent the usual chemical effect resulting from the contact-the discoloration of the ink; also, to increase or reduce the size of the cylinder bearing them; and they are removable by detachingthe screws (sce Fig. 3) holding them.

K, Fig. 1, is a beveLWheel borne by the shaft B, gearing with a smaller bevel-Wheel, L, Fig. 1, which latter is carried at one end which is held by appropriatebearings attached to the standard or frame A AX, and bears, near toits other endkanother small bevel-Wheel, N, Fig. 1, which gears into bevel-Wheel P of the same size, which is borne by a sliding or adj ustable frame, Q Q, calledthe roller-frame.77 This is a metallic frame, which is seen in Fig. 1 to reach from the top nearly to the bottom of the frame A AX, and slides on it to the left and back again to the position shown in Fig. l. This sliding is effected by the action of two devices: first, the lever or arm R, Fig. 1, (with its handle,) vwhich is borne at its lower end by the :frame A Ax, and carries there, in appropriate bearings attached to the frame, an eeby rocking the lever R. The roller-frame Q Q is thus pushed back to the left, rolling on the trucks Bq Rg, Fig. l; second, assistance to iheadjustinent ofthe roller-frame is given by of the diagonally-disposed shaft M, Fig. 1,`

centric, U, Fig. 1, which is partially rotated l IOO ` surface touches the. rider-roller referred to,

` a rider, W', Fig. 2, (on the shaft which bears rot-ation is communicated by the friction of ers.

thehand-wlieel S, Fig. l, which is borne by the frame A A.X at its upper part. The shaft carrying the hand-wheel S carries. also, an eccentric, V. These eccentrics U andV impinge, respectively, on the upper and lower edges of the roller-frame Q Q, and being partially rotated simultaneously the frame is rolled on the rollers Rg Rg to the` left in Fig. 1, carrying the sheave-wheels vT T T T, Fig. 1, and the inkdistributing rollers V YV WV WV, Fig. 2, called the riders, attached to their shafts, away from the form-cylinder F, and thus permitting the cleaning or washing up of the machine, after which the frame and rollers are returned to their normal working position. The surfaces of the composition rollers or riders WV W, &c.,Fig. 2, come in contact with those of another series of rollers, (not shown,) called the form-rollers, which impinge on the surface of the form-cylinder F. These latter act in the manner usual with rotary presses,and are borne, respectively, by the scallops, into which (see Fig. 1, dashed lilies) the left-hand edge of the sliding frame Q Q is seen to be fashioned. There are three of these form-rollers, and they are placed alternately between the rollers W' NV, Snc. The ink is received from the inklfountain (not represented) by a composition roller, W, Fig. 2, borne by the shaft which carries the bevel-gear P, Fig. 1, from which it passes to the roller T, Fig. 1, thence to the rider-roller W neXt to it, thence to the forinroller, (not represented, as above stated) whose and thence, in the usual manner with rotary presses, over the alternate rider and forni rollers. The rotation of these several form and rider rollers is thus effected. In the rotation of the shaft M and the bevel-gearN the bevelgear P is also rotated, from which, as above mentioned, rotation is communicated through,o

the bevel-gearP,)to the roller TZ, Fig. 1,whose said roller Tz upon the adjoining rider-roller XV, the lowest of the series WV W', Src., in Fig. The rotatory friction of this lowest roller (marked W) actuates the next form-roller not shown) above it, and so on to the end of the series of alternate rider-rollers and form-roll- The shaft bearing the bevel-gear P (and its roller which receives the ink from the inkfountain) and the shaft bearing the roller Tz are supported by the adjustable roller-stands l?7A and Q", which are both attached tothe sliding frame'Q Q, ,and are similar in construction. Oneonly, therefore, is represented enlarged in Fig. 5 andin sectional view in Fig. 6:r In these Figs. 5 and 6, Q Q is part of the sliding frame. The adjustable roller-stand Qz (under which title, in the nomenclature above, are included, for the purpose of simplification, all the immediate attachments shown in Figs. 5 and y6) is seen to be held' by the screw to the frame Q Q, and on this screw the stand partially rotates. S is a box or bearing car- -i y 256,639 r rying the shaft bearing the roller TZ, Fig. 1, which box is borne by a short arm overlapping the end of the standQZ, in which arm is an `oblong slot, through which the screw RZ passes. The oblong shape (seen in Fig. 5) of the slot permits the box Sl to slide to the left and right in Figs. 5 and 6Y for ,adjustment by means of the screw UZ, thus giving the roller Tz greater or less pressure, as may be required, upon the rider-roller W, Fig. 1 which touches it. V, Figs. 5 and G,` is a' screw' passing through an oblong slot in tlie right-hand end of the stand Ql into the sliding frame Q Q; The oblong shape of this slot, as seen in Fig. 5, gives still greater facility to the adjustment of the stand Q, and thus to the box S, These adjustable roller-stands P Qz are respectively one of a pair, the other members of the pairs being at the other end of the press:

A device for supplying water' to the form at the point marked G in Fig. 3 is thus madel and worked: WZ, Fig. 1, is a box supplied with water, called the water-fountain, in which rotates the roller seen in the drawings, which roller communicates water to the roller above it, which latter is one of two borne by a bar hinged, as seen in Fig. 1,v to the side of the box W. Thence, by raising the rollers borne by the bar, the water is passed by contact to the form, as above referred to. The raising is thus effected. The roller-bearing bar mentioned is seen to be connected at its middle to a bar proceeding perpendicularly upward, to Where its' upper end is hinged to another barnearlyhorizontally disposed,which is borne by a pin (which makes a fulcrum) attached the frame A Ax.- .To the other end of this last-named bar is hinged a second perpendicular bar, borne by aboX fastened to the inner side of the frame A Ax which permits its f ,below and that of the two bars next tothem.

The roller is made to descend by the action of a cam, Rx, Fig. 1, borne by the form-cylinder IOO shaft E. Thus by the alternate ascent and descent of the rollers borne by the bar the form is wetted, but (owing to the intermittent descent of the water-rollers) ,not at the other points of the cylinder. The means of the rotation of the roller in the water-fountain ith'as not been thought necessary to represent. This water-fountain is used in that process of print'- ing in which a zinc surface is substituted for a lithographie stone.

The device for vibrating the ink-distributing rollers is now to be described. f

The shaft E, Figs. l and 7, has a cap or plate, Z2, attached to one end of it,- so as to turn therewith, a diametrical guideway, Z3, being formed in said plate. This guideway receives a longitudinally-slotted bar, B,which is made adjustable in said guideway bya setscrew,C,

that passes through said slot and into the bed.

ward from `the face of said bar and is tapped i `to receive ascrew, X. A part of :said screw is made smooth andcylindrica'l, to forni a wri'st- `yibrates the vibrating arm Y.

pin., Y, which works in the longitudinal slot y 5of the inner end o'i' a vibrating bar, Y, the latter turning on a fulcruin, Z. The outer end of bar Y is loosely connected to two connecting-rods, Bx Cwhich respectively extend upward and downward, and .are respectively loosely `attached .at their operative ends by pins DX Fix to the approximate ends of levers F GX. These levers are attached to the shafts K1 Lx, respectively, said shafts being at rightl auglesto said levers, and being held to sliding frame Q by a bearing which admits of their, semi -rOt-ation. These shafts carry, respectively., iirmly fixed to them, two arms, Mx M N* N, Fig. l, (four in all,) seen in d-otted' ulines in Fig. l,which arms carry at their ends,

respectively, a device, P" P QFQ, Fig. 2,-

o shape as seen in side View in Fig. 2, which devices pass over the ends, respectively, of the shafts which carry the `composition rollers YV XV, &c. These devices F, ttc., envelop, respectively, in part the sheave-wh'eels T T, Ste., in such manner, as seen in Fig. 2, that tlie motion to the right and left of these eiwcloping devices pulls the respective shafts to which-the sheave-wheels T T, and the composition rollers XV "W, Sec., are attached alsoto the'v right and left. [In Fig. 2 one of these devices, QF, (which may serve as a sample for the four,) is seen to have its bentxends furnished each with an interiorly-proiecting roll, D D, which rolls pass between two circular plates, iirmly fastened at a little distance from each other, tothe. end of the shaft bearing a composition inkdistributing rollen] The action of 'this lastdescribed. combination' ot' 'devices proceeds.

- them, through means of the four devices above Y referred to, (seen in Fig. 2,) the sheave-wheels T T T T, with the riders W YV, Src., attached,

to them, .to be returned to their former position, when the completion of the rotation of the .shaft E restores the right-hand end of the Vibrating arm Y to its original place. Theslot (with its set-screw) in the right-hand portion of the vibrating arm Y and 'the slot in the slotted. bar B' (with its set-screw) give afacility of adjustmentwhich, it is seen, permits the riders to be drawn (orto vibrate) parallel to the axis ot' the form-cylinder to a greater or less distance, as occasion may require.

assess e I The .iimpression-cylinder and its action is new to be described.

Rx, Fig. 1, `dotted lines, is a cani (borne by the form-cylinder shaft E) whose surface in rotation inipi-nges upon a roller, Sx, bornebythe box Tx, which box slides to the right and left `in a box bolted to the frame A AX by screws. (Seen in Fig. l.) This box TX carries at its other (right-hand) end a pin, U, whichbears, loosely semi-rotating on it, a ring attached to the left-hand end of a short shaft, Vx, with a screw turned on it, over which screw passes a sleeve, XV, bored with a female screw. At its other end this screw-sleeve bears a lefthanded female screw, into which passes a corresponding inale screw, borne by the sho-rt shaft XX, which bears at its right-hand end a ring, carrying at right angles to the shaft X* a pin or short shaft, YX. Upon this pin imp'inge two arms, (thus making a toggle-joint,) one of which arms, D, passes diagonally downward to where, by means of a ring borne by its lower end, it is held to a pin, A, which pin passes through a projecting portion oi' the frame A AX, ou the other (and outer) side of which'the pin bears a circularplate, Bz, .which carries 'two curved slots, the arcs of which are eccentric to the pin A. Through these curved slots pass, respectively, pins C" D, (firmly attached by screws on thenrto the frame A A2) whose function is to hold the curved-slot plate B in position after the slots have been adjusted, so as' to give desired greater or less length (within the liinits of t-he eccentricity of the curved slot) to the Aarm Z. The other arm, Z, partially rotating on the pin YX, proceeds diagonally upward to where a ring, attached to its upper end, hinges on a pin borne by the bottom side of the impression-cylinder box Fig. l. This box slides upand down (with grooved'bearings) on the impression-cylinder frame FZ Fl, which is seen in Fig. l to be firinl y bolted on theupper edge of the right-hand side of the frame A AX. This box EZ is adjusted, when desired, as to its height by a set--screw above and one below, attached to the frame F F, and bears the shaft G, which carries the cog-wheel HZ, which gears into the large cog-wh eel D. This shaft Grz carries, also, the impression-cylinder J7', (not represent-ed in Fig. 1,) seen in sectional view and enlarged in Fig. 4. The ac-v tionv connected with the imprcssion-cylinder is this: The cani R, pressing on the roller S",

pushes the box TX to the right, (in Fig. 1,) and with Vit the short shafts Vx and XX, thus pressing to the right the toggle-joint, hinged bythe pin Y, The upper end ofthe arm ZX (as the lower. end is held from passing-downward by the pin A!) rises,`carrying withit,'upward,.

the arm Z, and the box E", and its shaft GZ, with vthe impression-cylinder J, the paper sheet on the latter heilig thus not in contact, while the raised condition of the cylinder continues with any portion of the form-cylinder F. Thus the passage, in rotation of the IOO IIO

faces of that cylinder, covered with ink, effects no deijlement of the paper sheet. Vhen these inked surfaces have passed, the formation of the cam Rx permits the descent of the impression-cylinder, and, the two cog-wheels D and H not having been thrown out of gear,

the rotation of both wheels, and consequently the printing of the paper sheets, proceeds, as before.

shaft, hinged tothe frame A Ax, and bearing.y a spiral spring, and having its left-hand end pointed, the point impinging in a small cavity on the edge of the pin Y".

left the pin Yx, (and the respective ends of the arms Zx T2) when the rotation of the cam ItX permits it, and thus draw do'wn the boX E, bearing the impressioncylinder.

H', Fig. l, is a shaft ruiming parallel with and below the impression-cylinder, (seen en-` larged .and in side view in Fig. `8,) and bearing, as seen in that gure, two brushes fastened spirally, like a helical screw, on the shaft.

This shaft and brushes are called the brushpaper eXtensor.7J The ends of the brushes impinge on the paper sheets to be printed as they pass over the impression-cylinder, and, being rotated, (by simple devices not represented,) the brushes draw the paper sheet from the center of the shaft respectively to the periphery fof the cylinder, but below the periphery) on a piece of rubber, MZ, held in the open space seen in'Fig. 4. by the screwing up of the clamp E. The impressiolrcylinder J, rotating with the rotation of the larger cog-wheel D, the paper sheet is wound round it, being kept spread smoothly upon the cylinder-face by the' action of the brushpaper extensor H, and the sheet in due course of rotation comes in contact with the form of types at the point G, Fig. 8, and is duly printed. It is then, by the action ofthe fiy J, (which is constructed and operated in the The impression-cylinder J is covered with two layers-one of paper and the other of cloth, or both of either-the sheets being held at one end by two blocks of wood or met:

The function of this springishaft G is to press backward to the form-cylinder', ofthe zinc ink-distributing sur- 'l usual 'manner with the iiies of rotary presses,)

withdrawn from the impression-cylinder and spread upon the delivery-table.

A device is added to the machine by which, when desirable, the printing by the impresion-cylinder, is stopped. This/is to be used when a sheet of paper Vis fed in askew, or in other similar contingencies.

L, Fig. l, is the throw-off, a lever hinged to the frame A A, (on the further side of the press, but represented, as shown, for convenience sake,) which. the left-hand end being pressed down by the foot, or otherwise, raises,on the right-hand side of its fulcrum, the horizontal arm of the bell-crank lever M, Fig. l, (borneL by the frame,) which action presses the arm Z just below the pin Y". which action raises the arm ZT above it, and with th emthe impressioil-cylinder box Fj', and the impressioncylinder which it carries, thus putting the latter out of contact with the form, and so stopping the printing of the impression-cylinder. The foot being removed from the throw-off, the box ll, -with all its attachments, returns to its usual positiomas seen in Fig. 1, and the printing is resumed.V

-I claim in printing-presses,-

1. The vibratingrarm Y, with its slot, as

shown, and the pin Z and screw X, in combi,-

nation with the rotating shaft carrying a.

guideway, a barand block adjustable in said guideway, a wrist-pin which enters said block, the rider ink-distributing rollers, and y the connecting-rods, bolts, and shafts between the arm Y andthe said rollers, all constructed and arranged substantially as shown and described. t

2. The toggle composed of the pin YX and the arms Zx and Z, in combination with the actuating-cam Rt, the impression cylinder, the impression-cylinder box E", the circular plate Bz with its pins C D", and means of connection between cam Rx and pinv YX, substantially as set forth.

3. rl/lhe toggle composed of the pin Yx and the arms Zx r XX, in combination with the-actuating-cam Rx, the impression-cylinder, and a sliding bar or piece for operating said toggle, said bar being connected to pin YX and arranged to be operated by said cam, substantially as set forth.

4.' In combination with a transverse guideway carried by the endY of a shaft, a bar adjustable therein, a slotted vibrati ng bar or lever having awrist-pin connection with said adjustable bar, and devices interposed between said A vibrating bar and the inking-rollers, substantially as and for the purpose set forth.V v

THOMAS BROVN DOOLFY.

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